Gentex SC 120VAC Smoke and CO Alarm

The Gentex SC is a 120VAC combination smoke and carbon monoxide alarm for dwelling unit evacuation applications, combining multi-criteria photoelectric smoke sensing with electrochemical CO sensing. It includes 9V battery backup, Gentex tandem interconnect support, Temporal 3 smoke signaling, Temporal 4 CO signaling, and a front-loading battery drawer. Key Specifications: Type: 120VAC combination smoke and carbon monoxide alarm with battery backup Core Function(s): Detects smoke and carbon monoxide with separate audible alarm patterns Loop/Protocol: Gentex tandem interconnect Power: 120VAC, 60 Hz; 0.055 amps operating current; 9V alkaline battery backup Indicators/UI: Red LED pulses every 16 seconds; green LED indicates AC power; push-button self test and functional test Alarm Output: 85 dBA at 10 feet; Temporal 3 for smoke and Temporal 4 for CO Sensing: Multi-criteria photoelectric smoke sensing and electrochemical CO sensing; nominal 2.5 percent smoke obscuration sensitivity Operating Range: 40 F to 100 F Battery: 9V alkaline backup battery with low or missing battery indication Mounting: Adapts to standard junction boxes; includes quick-disconnect wiring harness Service Life: 10-year end-of-life indicator Part Number: 918-0031-002 System Compatibility: Gentex tandem-capable S/C/SC/H Series alarm applications.